What does CSA-B149.1 Code specifically address?

The CSA-B149.1 Code specifically addresses the installation of natural gas and propane systems. It outlines the necessary standards and practices for gas installation to ensure safety and compliance with legal regulations. This includes guidelines for the design, construction, operation, and maintenance of natural gas and propane systems, focusing on aspects such as venting, appliance installations, and the proper use of materials.

The other options do not relate to the scope of CSA-B149.1. Residential electrical systems fall under different codes, such as the Canadian Electrical Code. Water supply and drainage is addressed by plumbing codes, and building structural integrity pertains to building codes, which do not intersect with the specific provisions regarding gas installations in CSA-B149.1. Understanding that CSA-B149.1 is dedicated to the unique requirements of gas appliances and installations helps facilitate safer practices in both residential and commercial settings.